# Modelling of AC feeding systems of electric railways based on a uniform multi-conductor chain circuit topology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

## Standard

**Modelling of AC feeding systems of electric railways based on a uniform multi-conductor chain circuit topology.** / Mingli, W.; Roberts, Clive; Hillmansen, S.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

## Harvard

*IET Seminar Digest.*13342 edn, vol. 2010, 12, IET Conference on Railway Traction Systems, RTS 2010, Birmingham, United Kingdom, 13/04/10. https://doi.org/10.1049/ic.2010.0018

## APA

*IET Seminar Digest*(13342 ed., Vol. 2010). [12] https://doi.org/10.1049/ic.2010.0018

## Vancouver

## Author

## Bibtex

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## RIS

TY - GEN

T1 - Modelling of AC feeding systems of electric railways based on a uniform multi-conductor chain circuit topology

AU - Mingli, W.

AU - Roberts, Clive

AU - Hillmansen, S.

PY - 2010/9/9

Y1 - 2010/9/9

N2 - AC power feeding systems of electric railways can be viewed as a multi-conductor chain circuit. All electrical elements along the railway, even including the short circuits and conductor breaks, can be described as series or shunt elements. According to the chain circuit topology, the mathematical model of the whole feeding system, i.e. the admittance matrix, can be assembled conveniently by appropriately modelling each element. Considering the relatively large leakage conductance of the current return rail to the ground, multi-conductor equivalent-π circuits can be adopted for each section of the feeding system. The characteristic admittance matrix, which can be calculated by the phase-modal transformation method, is introduced for the truncation treatment at terminals of a feeding system. The proposed modelling methodology has been realised using a simulation program, which can be used to investigate a wide range of problems in electric railway feeding systems, such as the conductor current distribution, the lowest train voltage at peak time, the short circuit calculation, the rail potential distribution and the harmonic propagation.

AB - AC power feeding systems of electric railways can be viewed as a multi-conductor chain circuit. All electrical elements along the railway, even including the short circuits and conductor breaks, can be described as series or shunt elements. According to the chain circuit topology, the mathematical model of the whole feeding system, i.e. the admittance matrix, can be assembled conveniently by appropriately modelling each element. Considering the relatively large leakage conductance of the current return rail to the ground, multi-conductor equivalent-π circuits can be adopted for each section of the feeding system. The characteristic admittance matrix, which can be calculated by the phase-modal transformation method, is introduced for the truncation treatment at terminals of a feeding system. The proposed modelling methodology has been realised using a simulation program, which can be used to investigate a wide range of problems in electric railway feeding systems, such as the conductor current distribution, the lowest train voltage at peak time, the short circuit calculation, the rail potential distribution and the harmonic propagation.

KW - Admittance matrix

KW - Chain circuit

KW - Electric railway

KW - Mathematical model

KW - Power feeding systems

UR - http://www.scopus.com/inward/record.url?scp=77956274434&partnerID=8YFLogxK

U2 - 10.1049/ic.2010.0018

DO - 10.1049/ic.2010.0018

M3 - Conference contribution

AN - SCOPUS:77956274434

SN - 9781849192118

VL - 2010

BT - IET Seminar Digest

T2 - IET Conference on Railway Traction Systems, RTS 2010

Y2 - 13 April 2010 through 15 April 2010

ER -